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发明名称
Method and equipment for the making of piles of concrete in situ
摘要
申请公布号
GB644258(A)
申请公布日期
1950.10.04
申请号
GB19480021412
申请日期
1948.08.13
申请人
JOHAN FREDRIK HAGRUP
发明人
分类号
E02D5/38
主分类号
E02D5/38
代理机构
代理人
主权项
地址
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